Writing and Balancing Chemical Equations

Question 1

The compound CO2 is made of

Revolt · Accepted Answer

one atom of carbon and two atoms of oxygen.

Question 2

Which word equation shows hydrogen reacting with oxygen to form water?

Revolt · Accepted Answer

hydrogen + oxygen water

Question 3

Which formula equation shows a reversible reaction?

Revolt · Accepted Answer

mc010-3.jpg

Question 4

According to the law of conservation of

Revolt · Accepted Answer

mass

Question 5

What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase?

Revolt · Accepted Answer

Upper H subscript 2 upper S upper O subscript 4 (a q) plus 2 upper N a upper O upper H (a q) right arrow upper N a subscript 2 upper A upper O subscript 4 (a q) plus 2 upper H subscript 2 upper O (l).

Question 6

Which equation has both a liquid and a gas as products?

Revolt · Accepted Answer

2 upper H g upper O (s) right arrow 2 upper H g (l) plus upper O subscript 2 (g).

Question 7

Isopropanol burns in oxygen to yield carbon dioxide, water, and heat. Which word equation best represents this chemical reaction?

Revolt · Accepted Answer

isopropanol + oxygen carbon dioxide + water + heat

Question 8

This formula equation is unbalanced.P4(s) + 6Cl2(g) PCl3(l) Which coefficient should be placed in front of PCl3 to balance this equation?

Revolt · Accepted Answer

4

Question 9

In a chemical equation, which symbol should be used to indicate that a substance is in solution?

Revolt · Accepted Answer

(aq)

Question 10

The chemical equation for the formation of ammonia is unbalanced.3H2(g) + N2(g) NH3(g)If three molecules of hydrogen react with one molecule of nitrogen, how many molecules of ammonia would be formed?

Revolt · Accepted Answer

2

Writing and Balancing Chemical Equations Answers

More from this Course

TRY EDGENUITY HACKS